I would use about 13,000 btu for my coal and assume less efficiency for the coal boiler compared to the oil fired boiler, especially if the oil boiler is not very old. Remember the coal fire burns all the time, it just gets larger and smaller. I would figure closer to 4 tons annual coal usage. Looking at it that way you are looking at a 5 year return on investment which is not bad considering the boiler will outlast you with proper maintenance.Other risk factors to consider is the price and supply of coal and oil in the future. No one knows what prices and supplies will be like going forward but it would be safe to assume coal and oil will cost more in the future, how much more, who knows?

You should find someone that uses a coal fired boiler and go maintain it for a week then multiply that by about 27 and see if your up for the work the 4-6 ash tubs a week gets real old after the first month.

Last edited by Ripple on Sun Mar 23, 2008 8:36 am, edited 1 time in total.

nomoreoil wrote:Currently I am using a propane water heater, so yes I will save that when the boiler is running. I do not think I would run the boiler during the warmer 6 months of the year just to make hot water.

It would be worth considering. Nothing will prolong the life of a boiler more than keeping it hot forever

You have to see if it can be done for break even, or I would even do it if it cost a little bit more.

Ripple wrote:You should find someone that uses a coal fired boiler and go maintain it for a week then multiply that by about 27 and see if your up for the work the ash tubs get real old after the first month.

Good point! I am willing to trade a little time and effort for the money saved. I grew up with coal so I knew what I was signing up for when I switched back. Coal heat is not for everyone, consider it carefully.

I don't know what boiler Ripple is referring to but I've never had more than two ash tubs per week, even in the coldest of weather. Don't get me wrong, its not "fun" but it is most satisfying to walk past the oil burner and it is silent. I burned 0 gallons of oil this year. For the 2K a year it saves me in oil, I'll carry two ash tubs a week. You don't list your location but the price for the boiler seems alittle high. Where are you?

have you considered a keystoker kaa-2 very well built and will last forever. i am heating about the same space as you and i am only burning a bag evey 24 hours. my oil burner only came on once this year and that was for the reason is we were at work and lost power for several hours and the coal went out. you are lookingat huge money savings i plan to break even in 2 years unless oil alls on its face.

Hi nomoreoil.. check via a search or look in the first forum or the 'best of' forum for threads on ash disposal... there are several long threads on ash disposal..

With your location, choice of boiler, and fuel use, I think you will be very happy burning coal.. Check around for that boiler,, there are several members that bought one from a dealer in NH I think for a very fair price..

I guess the delivery is the difference. That's where I bought mine and my wifes cousin bought his but we both picked ours up. I've got an acre of woods. I use the ash as a paving material for paths through the woods. I'm in Harford County MD and I shopped around. Finch had the best price.Also, When you say replace your oil burner, are you planning on actually removing it or just not using it?

Ripple wrote:You should find someone that uses a coal fired boiler and go maintain it for a week then multiply that by about 27 and see if your up for the work the 4-6 ash tubs a week gets real old after the first month.

I grew up with coal in an efm conversion stoker which had two conveyors that dumped the ash into buckets. Half the time the buckets were overflowing. After Uncle Sam needed my brother and I, the stoker wasn't far behind in leaving home.

Brought on by the first "energy crisis" in '73/74, we decided to heat with all wood when we built our house in '77 and for the last 31 years I've been adding wood 10 times a day; so there are worse things that can happen than coal ash buckets to empty.

I use the term "worse" loosely. We always enjoyed a warm house and lately, free hot water.